* {
	margin: 0;
	padding: 0;
	/* css3的盒子模型 */
	box-sizing: border-box;
}
em,
i {
	font-style: none;
}

li {
	list-style-type: none;
}

img {
	border: 0;
	vertical-align: middle;
}

a {
	text-decoration: none;
}

input {
	border: 0;
	outline: none;
}

html,
body {
	background-color: #f3f5f6;
	font-size: 16px;
}


.clearfix:after			   {				content: "";				display: block;				height: 0;				clear: both;				visibility: hidden;			}
.fl {
	float: left;
}
.fr {
	float: right;
}
			